package com.kiku.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.kiku.reggie.common.R;
import com.kiku.reggie.entity.Employee;
import com.kiku.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

/**
 * @className: EmployeeController
 * @description: TODO 类描述
 * @author: kiku
 * @date: 2023/10/17 15:54
 **/
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){

        //1.将页面提交的密码进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //2.根据页面提交的用户名进行数据库的查询
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3.如果没有查询到则返回登陆失败的结果
        if (emp==null){
            return R.error("登陆失败");
        }
        //4.进行密码的比对,若为不一致的结果就返回登陆失败的结果
        if (!emp.getPassword().equals(password)){
            return R.error("登陆失败");
        }
        //5.查看员工的状态
        if (emp.getStatus()==0){
            return R.error("账号已禁用");
        }
        //6.登陆成功,将员工的id存入session并返回结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);

    }

    //实现员工退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理session中保存的当前登陆员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    //实现新增员工
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工，员工信息:{}",employee.toString());
        //设置初始密码为123456，需要进行md5加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());
        //获取到当前登录用户的id
        Long empId = (Long) request.getSession().getAttribute("employee");
        //employee.setCreateUser(empId);
        //employee.setUpdateUser(empId);
        //这个save方法是mybatis-plus中提供的
        employeeService.save(employee);
        return R.success("新增员工成功");
    }

    //员工信息的分页查询
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page:{},pageSize:{},name:{}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        //添加一个过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        //添加一个排序的条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);

    }

    //根据id进行员工信息的修改
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());
        log.info("线程Id为:{}",Thread.currentThread().getId());
       // employee.setUpdateTime(LocalDateTime.now());
        Long empId = (Long) request.getSession().getAttribute("employee");
       // employee.setUpdateUser(empId);
        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }

    //根据id进行员工信息的查询
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息");
        Employee employee = employeeService.getById(id);
        if (employee!=null){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工的信息");
    }

}
